Directions:Whisk the egg yolks,butter and sugar,then add the flour,salt and vanilla and knead the dough.Wrap it in the foil and chill for 30'.Preheat the oven to 200C.On a floured surface,roll the chilled dough to 3-4mm thickness and cut into desired shapes.Chill for 10'.Bake for 8-9' to stay white.Cool before filling.For the filling,dissolve the nescafe in rum.Mix the cream cheese,nescafe and powdered sugar.Spread the half of the cookies with filling and top with remaining cookies.For the glaze,spread some melted white chocolate on top of the cookies and sprinkle with grated dark chocolate and cocoa powder.Leave them overnight to soften.